java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec8_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:12:43,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:12:43,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:12:43,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:12:43,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:12:43,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:12:43,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:12:43,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:12:43,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:12:43,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:12:43,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:12:43,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:12:43,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:12:43,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:12:43,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:12:43,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:12:43,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:12:43,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:12:43,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:12:43,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:12:43,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:12:43,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:12:43,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:12:43,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:12:43,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:12:43,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:12:43,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:12:43,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:12:43,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:12:43,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:12:43,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:12:43,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:12:43,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:12:43,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:12:43,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:12:43,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:12:43,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:12:43,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:12:43,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:12:43,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:12:43,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:12:43,912 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:12:43,947 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:12:43,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:12:43,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:12:43,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:12:43,952 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:12:43,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:12:43,952 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:12:43,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:12:43,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:12:43,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:12:43,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:12:43,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:12:43,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:12:43,953 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:12:43,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:12:43,954 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:12:43,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:12:43,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:12:43,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:12:43,954 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:12:43,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:12:43,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:43,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:12:43,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:12:43,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:12:43,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:12:43,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:12:43,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:12:43,956 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:12:44,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:12:44,259 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:12:44,263 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:12:44,264 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:12:44,265 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:12:44,265 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product28.cil.c [2019-10-13 23:12:44,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f29f304de/f282e57219d9494a93b062f429e9b5fd/FLAG27de026e6 [2019-10-13 23:12:44,993 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:12:44,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product28.cil.c [2019-10-13 23:12:45,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f29f304de/f282e57219d9494a93b062f429e9b5fd/FLAG27de026e6 [2019-10-13 23:12:45,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f29f304de/f282e57219d9494a93b062f429e9b5fd [2019-10-13 23:12:45,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:12:45,208 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:12:45,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:45,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:12:45,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:12:45,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:45" (1/1) ... [2019-10-13 23:12:45,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3632a333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:45, skipping insertion in model container [2019-10-13 23:12:45,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:45" (1/1) ... [2019-10-13 23:12:45,230 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:12:45,314 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:12:46,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:46,184 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:12:46,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:46,407 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:12:46,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46 WrapperNode [2019-10-13 23:12:46,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:46,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:12:46,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:12:46,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:12:46,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:12:46,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:12:46,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:12:46,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:12:46,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:12:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:12:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:12:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:12:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:12:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:12:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:12:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:12:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-13 23:12:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:12:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:12:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:12:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:12:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:12:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:12:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:12:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:12:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:12:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:12:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:12:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:12:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:12:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:12:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:12:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:12:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:12:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:12:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:12:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:12:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:12:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:12:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:12:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:12:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:12:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:12:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:12:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:12:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:12:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:12:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:12:46,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:12:46,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:12:46,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:12:46,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:46,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:12:46,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:46,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:12:46,739 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:12:46,740 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:12:46,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:12:46,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:12:46,740 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:12:46,741 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:12:46,742 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:12:46,742 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:12:46,742 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:12:46,742 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:12:46,743 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:12:46,743 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:12:46,743 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:12:46,743 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:12:46,743 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:12:46,744 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:12:46,744 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:12:46,744 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:12:46,744 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:12:46,745 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:12:46,745 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:12:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:12:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:12:46,747 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:12:46,747 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:12:46,747 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:12:46,747 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:12:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:12:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:12:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:12:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:12:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:12:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:12:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:12:46,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:12:46,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:12:46,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:12:46,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:12:46,752 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:12:46,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:12:46,753 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:12:46,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:12:46,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:12:46,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:12:46,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:12:46,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:12:46,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:12:46,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:12:46,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:12:46,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:12:46,755 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:12:46,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:12:46,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:12:46,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:12:46,756 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:12:46,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:12:46,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:12:46,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:12:46,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:12:46,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:12:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:12:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:12:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:12:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:12:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:12:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:12:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:12:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:12:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:12:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:12:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:12:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:12:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:12:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:12:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:12:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:12:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:12:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:12:46,764 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:12:46,764 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:12:46,765 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:12:46,768 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:12:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:12:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:12:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:12:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:12:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:12:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:12:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:12:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:12:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:12:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:12:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-13 23:12:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:12:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:12:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:12:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:12:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:12:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:12:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:12:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:12:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:12:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:12:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:12:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:12:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:12:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:12:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:12:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:12:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:12:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:12:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:12:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:12:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:12:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:12:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:12:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:12:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:12:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:12:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:12:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:12:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:12:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:12:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:12:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:12:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:12:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:12:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:12:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:12:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:12:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:12:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:12:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:12:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:12:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:12:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:12:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:12:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:12:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:12:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:12:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:12:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:12:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:12:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:12:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:12:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:12:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:12:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:12:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:12:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:12:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:12:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:12:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:12:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:12:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:12:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:12:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:12:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:12:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:12:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:12:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:12:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:12:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:12:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:12:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:12:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:12:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:12:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:12:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:12:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:12:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:12:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:12:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:12:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:12:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:12:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:12:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:12:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:12:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:12:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:12:51,410 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:12:51,411 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:12:51,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:51 BoogieIcfgContainer [2019-10-13 23:12:51,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:12:51,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:12:51,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:12:51,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:12:51,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:12:45" (1/3) ... [2019-10-13 23:12:51,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc54649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:51, skipping insertion in model container [2019-10-13 23:12:51,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (2/3) ... [2019-10-13 23:12:51,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc54649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:51, skipping insertion in model container [2019-10-13 23:12:51,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:51" (3/3) ... [2019-10-13 23:12:51,423 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product28.cil.c [2019-10-13 23:12:51,433 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:12:51,446 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:12:51,458 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:12:51,499 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:12:51,499 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:12:51,499 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:12:51,501 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:12:51,505 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:12:51,505 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:12:51,505 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:12:51,505 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:12:51,542 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states. [2019-10-13 23:12:51,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-13 23:12:51,572 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:51,574 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:51,576 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:51,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:51,583 INFO L82 PathProgramCache]: Analyzing trace with hash -888853171, now seen corresponding path program 1 times [2019-10-13 23:12:51,595 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:51,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196916656] [2019-10-13 23:12:51,596 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:51,596 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:51,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:52,190 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:52,191 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196916656] [2019-10-13 23:12:52,192 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:52,192 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:12:52,192 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369362635] [2019-10-13 23:12:52,197 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:12:52,197 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:52,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:12:52,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:52,214 INFO L87 Difference]: Start difference. First operand 376 states. Second operand 2 states. [2019-10-13 23:12:52,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:52,270 INFO L93 Difference]: Finished difference Result 525 states and 623 transitions. [2019-10-13 23:12:52,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:12:52,271 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-13 23:12:52,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:52,289 INFO L225 Difference]: With dead ends: 525 [2019-10-13 23:12:52,289 INFO L226 Difference]: Without dead ends: 334 [2019-10-13 23:12:52,297 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:52,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-10-13 23:12:52,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2019-10-13 23:12:52,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2019-10-13 23:12:52,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 396 transitions. [2019-10-13 23:12:52,372 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 396 transitions. Word has length 125 [2019-10-13 23:12:52,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:52,374 INFO L462 AbstractCegarLoop]: Abstraction has 334 states and 396 transitions. [2019-10-13 23:12:52,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:12:52,374 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 396 transitions. [2019-10-13 23:12:52,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-13 23:12:52,378 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:52,379 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:52,379 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:52,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:52,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1100530126, now seen corresponding path program 1 times [2019-10-13 23:12:52,380 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:52,380 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389844156] [2019-10-13 23:12:52,380 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:52,380 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:52,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:52,629 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:52,630 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389844156] [2019-10-13 23:12:52,630 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:52,630 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:52,630 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075436308] [2019-10-13 23:12:52,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:52,634 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:52,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:52,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:52,635 INFO L87 Difference]: Start difference. First operand 334 states and 396 transitions. Second operand 3 states. [2019-10-13 23:12:52,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:52,701 INFO L93 Difference]: Finished difference Result 510 states and 594 transitions. [2019-10-13 23:12:52,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:52,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-13 23:12:52,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:52,714 INFO L225 Difference]: With dead ends: 510 [2019-10-13 23:12:52,714 INFO L226 Difference]: Without dead ends: 336 [2019-10-13 23:12:52,717 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:52,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2019-10-13 23:12:52,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2019-10-13 23:12:52,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-10-13 23:12:52,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 398 transitions. [2019-10-13 23:12:52,768 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 398 transitions. Word has length 126 [2019-10-13 23:12:52,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:52,769 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 398 transitions. [2019-10-13 23:12:52,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:52,769 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 398 transitions. [2019-10-13 23:12:52,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-13 23:12:52,771 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:52,771 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:52,772 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:52,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:52,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1425474562, now seen corresponding path program 1 times [2019-10-13 23:12:52,772 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:52,773 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499916103] [2019-10-13 23:12:52,773 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:52,773 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:52,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:52,930 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499916103] [2019-10-13 23:12:52,931 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:52,931 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:52,931 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238574188] [2019-10-13 23:12:52,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:52,934 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:52,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:52,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:52,934 INFO L87 Difference]: Start difference. First operand 336 states and 398 transitions. Second operand 3 states. [2019-10-13 23:12:52,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:52,991 INFO L93 Difference]: Finished difference Result 652 states and 800 transitions. [2019-10-13 23:12:52,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:52,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-13 23:12:52,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:53,000 INFO L225 Difference]: With dead ends: 652 [2019-10-13 23:12:53,000 INFO L226 Difference]: Without dead ends: 374 [2019-10-13 23:12:53,003 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:53,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2019-10-13 23:12:53,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 373. [2019-10-13 23:12:53,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-10-13 23:12:53,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 463 transitions. [2019-10-13 23:12:53,039 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 463 transitions. Word has length 131 [2019-10-13 23:12:53,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:53,040 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 463 transitions. [2019-10-13 23:12:53,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 463 transitions. [2019-10-13 23:12:53,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:12:53,048 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:53,048 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:53,049 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:53,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:53,049 INFO L82 PathProgramCache]: Analyzing trace with hash 488746191, now seen corresponding path program 1 times [2019-10-13 23:12:53,049 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:53,050 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880812637] [2019-10-13 23:12:53,050 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,050 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:12:53,383 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880812637] [2019-10-13 23:12:53,383 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:53,384 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:53,384 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737302782] [2019-10-13 23:12:53,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:53,385 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:53,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:53,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:53,385 INFO L87 Difference]: Start difference. First operand 373 states and 463 transitions. Second operand 3 states. [2019-10-13 23:12:53,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:53,436 INFO L93 Difference]: Finished difference Result 593 states and 717 transitions. [2019-10-13 23:12:53,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:53,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-10-13 23:12:53,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:53,442 INFO L225 Difference]: With dead ends: 593 [2019-10-13 23:12:53,444 INFO L226 Difference]: Without dead ends: 422 [2019-10-13 23:12:53,445 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:53,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2019-10-13 23:12:53,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2019-10-13 23:12:53,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-10-13 23:12:53,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 512 transitions. [2019-10-13 23:12:53,480 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 512 transitions. Word has length 132 [2019-10-13 23:12:53,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:53,482 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 512 transitions. [2019-10-13 23:12:53,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:53,482 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 512 transitions. [2019-10-13 23:12:53,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-13 23:12:53,487 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:53,488 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:53,488 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:53,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:53,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1934603350, now seen corresponding path program 1 times [2019-10-13 23:12:53,489 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:53,489 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162324396] [2019-10-13 23:12:53,489 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,489 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:54,309 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:12:54,310 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162324396] [2019-10-13 23:12:54,311 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671533348] [2019-10-13 23:12:54,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:12:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:55,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 3017 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:12:55,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:12:55,178 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-13 23:12:55,178 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:12:55,754 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:12:55,755 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [909031405] [2019-10-13 23:12:55,794 INFO L162 IcfgInterpreter]: Started Sifa with 186 locations of interest [2019-10-13 23:12:55,794 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:12:55,800 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:12:55,807 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:12:55,808 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs